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Ground fault feedback sensor – Rockwell Automation 150 SMC Quick Start Manual User Manual

Page 27

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Rockwell Automation Publication 150-QS003D-EN-P - November 2013

25

Installation Chapter 2

The following figure shows the connection of the 825-MCM to the SMC-50’s
150-SM2 option module.

Figure 16 - Converter to Option Module Connection

The cable length is fixed at 4 meters. Only the cable provided with the converter can be used. The use of any

other cable will result in incorrect data from the converter and incorrect controller operation.

Ground Fault Feedback Sensor

The SMC-50 can provide ground-fault indication when used with the 150-SM2
option module and Cat. No. 825-CBCT Core Balance Ground Fault Sensor.
This sensor mounts separately from the SMC-50 and must be placed within 3
meters of the option module. A customer-supplied shielded, twisted pair cable
for wiring the sensor to the 150-SM2 module must meet the requirements
outlined in the table below.

Table 7 - Ground-Fault Sensor Cable Requirements

Wire Type

Shielded, twisted pair

Wire Cross Section

0.2...2.5 mm

2

(#24...14 AWG)

Terminal Torque

0.8 N•m (7 lb - in.)

ATTENTION: The ground fault sensing feature of the SMC-50 is intended
for monitoring purposes only and not as a ground fault circuit interrupter
for personnel protection as defined in Article 100 of the NEC. The ground
fault sensing feature has not been evaluated for conformance to UL 1053.

825-MCA Connection Cable
Provided as standard with the
825 Converter Module.

RG25U Male
Connection

825 Converter
Module

1

150-SM2
Option Module